72240502 has 16 divisors (see below), whose sum is σ = 111615120. Its totient is φ = 35041248.

The previous prime is 72240481. The next prime is 72240503. The reversal of 72240502 is 20504227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72240503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28149 + ... + 30607.

It is an arithmetic number, because the mean of its divisors is an integer number (6975945).

Almost surely, 2^72240502 is an apocalyptic number.

72240502 is a deficient number, since it is larger than the sum of its proper divisors (39374618).

72240502 is a wasteful number, since it uses less digits than its factorization.

72240502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 72240502 is about 8499.4412757545. The cubic root of 72240502 is about 416.4794575169.

Adding to 72240502 its reverse (20504227), we get a palindrome (92744729).

The spelling of 72240502 in words is "seventy-two million, two hundred forty thousand, five hundred two".